<!DOCTYPE html><html><head lang="zh-cn"> <meta charset="UTF-8"> <title>计算圆面积</title> <link rel="stylesheet" href="/static/css/255990a3b6b5b76cf3488ffb76157d45.css"></head><body ontouchstart=""><h1>计算圆面积：</h1>圆半径：<input type="text" value="0" id="input"/><br>圆面积：<span id="output">0</span><script src="/static/js/coolie.min.js" data-config="./coolie-config.42582aad60a9a681775db43d84ca78d7.js" data-main="./area.js"></script></body></html>
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